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A platform for research: civil engineering, architecture and urbanism
High-dispersity polycarboxylic acid concrete admixture and preparation method thereof
The invention discloses a high-dispersity polycarboxylic acid concrete admixture and a preparation method thereof, the high-dispersity polycarboxylic acid concrete admixture comprises 20-25 parts of vinyl diethylene glycol polyoxyethylene ether, 5-10 parts of methoxy polyoxyethylene ether, 1-2 parts of acrylic acid, 0.25-0.5 parts of hydrogen peroxide, 0.5-1 parts of mercaptoacetic acid, VC and deionized water. By adopting the special design synthesis technology of the polycarboxylic acid molecular structure, the polycarboxylic acid admixture with high dispersity on cement is obtained, the structure is more stable, the cement particles are well dispersed, innovation in molecular structure and design principle is achieved, polymerization is carried out at normal temperature, the reaction rate is high, the process is simple, the method is easy to control, low in energy consumption, pollution-free in synthesis process and good in product quality.
本发明公开了一种高分散性聚羧酸混凝土外加剂及制备方法，包括乙烯基二乙二醇聚氧乙烯基醚、甲氧基聚氧乙烯基醚、丙烯酸、双氧水、巯基乙酸、VC以及去离子水，其中乙烯基二乙二醇聚氧乙烯基醚的占比设为20份‑25份，所述甲氧基聚氧乙烯基醚的占比设为5份‑10份，所述丙烯酸的占比设为1份‑2份，所述双氧水的占比设为0.25份‑0.5份，所述巯基乙酸的占比设为0.5份‑1份。本发明通过采用的聚羧酸分子结构特殊设计合成技术，获得一种对水泥具有高分散性的聚羧酸外加剂，该结构更加稳定，对水泥颗粒具有良好的分散效果，做到了从分子结构上、设计原理上的创新，在常温下聚合，反应速率高，工艺简单，易于控制，能耗低，合成过程无污染，产品质量好。
High-dispersity polycarboxylic acid concrete admixture and preparation method thereof
The invention discloses a high-dispersity polycarboxylic acid concrete admixture and a preparation method thereof, the high-dispersity polycarboxylic acid concrete admixture comprises 20-25 parts of vinyl diethylene glycol polyoxyethylene ether, 5-10 parts of methoxy polyoxyethylene ether, 1-2 parts of acrylic acid, 0.25-0.5 parts of hydrogen peroxide, 0.5-1 parts of mercaptoacetic acid, VC and deionized water. By adopting the special design synthesis technology of the polycarboxylic acid molecular structure, the polycarboxylic acid admixture with high dispersity on cement is obtained, the structure is more stable, the cement particles are well dispersed, innovation in molecular structure and design principle is achieved, polymerization is carried out at normal temperature, the reaction rate is high, the process is simple, the method is easy to control, low in energy consumption, pollution-free in synthesis process and good in product quality.
本发明公开了一种高分散性聚羧酸混凝土外加剂及制备方法，包括乙烯基二乙二醇聚氧乙烯基醚、甲氧基聚氧乙烯基醚、丙烯酸、双氧水、巯基乙酸、VC以及去离子水，其中乙烯基二乙二醇聚氧乙烯基醚的占比设为20份‑25份，所述甲氧基聚氧乙烯基醚的占比设为5份‑10份，所述丙烯酸的占比设为1份‑2份，所述双氧水的占比设为0.25份‑0.5份，所述巯基乙酸的占比设为0.5份‑1份。本发明通过采用的聚羧酸分子结构特殊设计合成技术，获得一种对水泥具有高分散性的聚羧酸外加剂，该结构更加稳定，对水泥颗粒具有良好的分散效果，做到了从分子结构上、设计原理上的创新，在常温下聚合，反应速率高，工艺简单，易于控制，能耗低，合成过程无污染，产品质量好。
High-dispersity polycarboxylic acid concrete admixture and preparation method thereof
一种高分散性聚羧酸混凝土外加剂及制备方法
ZHANG DEXING (author) / JIA LEI (author) / LIU YANG (author) / SHI CHUN (author) / LI HESHENG (author)
2021-06-11
Patent
Electronic Resource
Chinese
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